Adriana: Hello everyone, how are you? The invitation to this conference today is to discuss the materials that we should use to build our latest project. The construction project is an office building in the new business center of the city.

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Patricia: Hello, well I support the use of stone, is a very tough material and so we can give our project a very long life expectancy.

- Genesis: Hi! Are you sure it's okay to work with stones? I think it is very heavy and hard to carry I think it is better to use brick.

- Luis: Hello everyone. I as an expert in metals specifically iron and steel, I propose the use of these materials to construct the building structure.

- Patricia:
Yes, it is very difficult to carry, but the stone has its advantages. Among these, I can mention the use of this material would provide to our building, stability, durability and unmatched adaptability to endure long years. What do you think about this Adriana?

- Adriana:
Firstly I agree with the structure of the building is constructed of steel or iron; I think that would provide stability to the building. On the use of stone as construction material it could be used in some parts of the building and could also be used as decorative material.

- Genesis: Also a brick wall can last indefinitely and also provide a very nice facade.

- Adriana: Brick is a material that has been used since long in the making of the walls of buildings.

- Genesis: Brick also offers a long-term performance in addition to low maintenance costs.

- Adriana: It is also important to combine the use of steel or iron with concrete, which is known as reinforced concrete. This construction technique is widely used all over the world and has effective results.

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Luis: Steel and concrete work very well mixed for the rise of the building. Is the first stage of construction and then we would have to see the building facades and finishes but do brick is very complicated.

- Patricia: Yes, in fact we could use stone in places that need more protection.

- Luis:
There are more modern materials.

- Adriana: It is true that exist most modern materials and also there are other materials that are developed with greater technology for protection against environmental effects.

- Patricia:
Sure, we can“t forget that.

- Genesis: Another advantage is that the bricks can be recycled.

- Luis: At this time is extremely important to incorporate materials that can be recycled so we do less damage to the environment.

- Adriana:
Well I think we should use different building materials with which we work. Each offer different advantages that combined will give the building stability and durability that we are looking for. Thank you all for coming.

- Luis:
Then it will do so. The steel will use for structure, concrete for floors and walls, bricks and stones to the ends and facades.